DFH-4 Satellite Bus
Data current as of 2026-07-20.
The DFH-4 bus accounts for 50 cataloged objects, of which 50 are in orbit and 41 are active. Most are built by CAST. The largest operator on this bus is CHISAE. The first launched in 2006, the most recent in 2025.
50
In orbit
41
Active
50
Total launched
0
Reentered
DFH-4 launched per year
Still in orbit Click a year to list its satellites.
Typical specifications
Most common values across cataloged DFH-4 satellites.
| Manufacturer | CAST |
|---|---|
| Purpose | Communication |
| Launch mass | 5000 kg |
| Dry mass | 2500 kg |
| Length | 5 m |
| Diameter | 2.5 m |
| Span | 30 m |
| Shape | Box + 2 Pan |
| Power | 2 deployable solar arrays, batteries |
| Propulsion | DFH-4 LAE |
| Design life | 15 years |
| Equipment | Ka-band high throughput communications payload |
| Typical orbit | 1436 min period, 0° inclination |
Top operators
CHISAE 9 CAST 8 ZLZB 6 ZZB 5 CASC 4 CNSA 3 APT 2 NGCOM 2 SUPA 2 YWZB 2 ABAE 1 ABE 1 ASAL 1 CHISAE/CAST 1 CNSAS 1
Top countries
CN 37 PRC 3 HK 2 NG 2 PK 2 BO 1 BY 1 DZ 1 VE 1
DFH-4 satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| TIANWEN-2 | 64197 | 2025-114A | CASC | May 28, 2025 | 90 min, 28.9° | Active | ◉ |
| TIANLIAN-2 05 | 63662 | 2025-084A | CAST | Apr 27, 2025 | 1436 min, 4.4° | Active | ◉ |
| TIANLIAN-2 04 | 63361 | 2025-062A | CAST | Mar 26, 2025 | 1436 min, 4.3° | Active | ◉ |
| CHINASAT 10R | 63075 | 2025-036A | CHISAE | Feb 22, 2025 | 1436 min, 0.0° | Active | ◉ |
| HULIANWAN GAOGUI-03 (HG-03) HG-03 | 61503 | 2024-181A | CNSA | Oct 10, 2024 | 1436 min, 0.1° | Active | ◉ |
| HULIANWAN GAOGUI-02 (HG-02) HG-02 | 60327 | 2024-135A | CNSA | Aug 1, 2024 | 1436 min, 0.0° | Active | ◉ |
| PAKSAT-MM1 Paksat MM1 | 59915 | 2024-104A | SUPA | May 30, 2024 | 1436 min, 0.0° | Active | ◉ |
| HULIANWAN GAOGUI-01 (HG-01) HG-01 | 59069 | 2024-040A | CNSA | Feb 29, 2024 | 1436 min, 0.1° | Active | ◉ |
| ZHONGXING-6E Zhongxing 6E | 58253 | 2023-172A | CHISAE | Nov 9, 2023 | 1436 min, 0.0° | Active | ◉ |
| GAOFEN-13 02 Gao Fen 13-02 | 55912 | 2023-036A | YWZB | Mar 17, 2023 | 1436 min, 1.0° | Active | ◉ |
| ZHONGXING-26 Zhongxing 26 | 55686 | 2023-023A | CHISAE | Feb 23, 2023 | 1436 min, 0.1° | Active | ◉ |
| ZHONGXING-19 Zhongxing 19 | 54230 | 2022-148A | CHISAE | Nov 5, 2022 | 1436 min, 0.0° | Active | ◉ |
| ZHONGXING-1E Zhongxing 1E | 53813 | 2022-112A | ZLZB | Sep 13, 2022 | 1436 min, 0.1° | Active | ◉ |
| TIANLIAN 2-03 Tian Lian 2-03 | 53100 | 2022-078A | CAST | Jul 12, 2022 | 1436 min, 0.8° | Active | ◉ |
| ZHONGXING-6D Zhongxing 6D | 52255 | 2022-038A | CHISAE | Apr 15, 2022 | 1436 min, 0.0° | Active | ◉ |
| TJS-9 Tongxin Jishu Shiyan 9 | 50574 | 2021-135A | CASC | Dec 29, 2021 | 1436 min, 0.1° | Active | ◉ |
| TIANLIAN 2-02 Tian Lian 2-02 | 50005 | 2021-124A | CAST | Dec 13, 2021 | 1436 min, 0.9° | Active | ◉ |
| ZHONGXING-1D Zhongxing 1D | 49505 | 2021-114A | ZLZB | Nov 26, 2021 | 1436 min, 0.0° | Active | ◉ |
| CHINASAT 9B Zhongxing 9B | 49125 | 2021-080A | CHISAE | Sep 9, 2021 | 1436 min, 0.0° | Active | ◉ |
| ZHONGXING-2E Zhongxing 2E | 49062 | 2021-071A | ZLZB | Aug 5, 2021 | 1436 min, 0.0° | Active | ◉ |
| TIANTONG-1 3 Tiantong-1 03 xing | 47321 | 2021-003A | CAST | Jan 19, 2021 | 1436 min, 1.7° | Active | ◉ |
| TIANTONG-1 2 Tiantong-1 02 xing | 46916 | 2020-082A | CAST | Nov 12, 2020 | 1436 min, 0.8° | Active | ◉ |
| GAOFEN-13 01 Gao Fen 13 | 46610 | 2020-071A | YWZB | Oct 11, 2020 | 1436 min, 0.5° | Active | ◉ |
| TJS-4 Tongxin Jishu Shiyan 4 | 44637 | 2019-070A | CASC | Oct 17, 2019 | 1436 min, 0.1° | Active | ◉ |
| ZHONGXING-18 Zhongxing 18 | 44493 | 2019-053A | ZLZB | Aug 19, 2019 | 380 min, 28.5° | Inactive | ◉ |
| TIANLIAN 2-01 Tian Lian 2-01 | 44076 | 2019-017A | CAST | Mar 31, 2019 | 1436 min, 0.6° | Active | ◉ |
| ZHONGXING-6C Zhongxing 6C | 44067 | 2019-012A | ZLZB | Mar 9, 2019 | 1436 min, 0.1° | Inactive | ◉ |
| ZHONGXING-2D Zhongxing 2D | 43920 | 2019-001A | ZLZB | Jan 10, 2019 | 1436 min, 0.0° | Active | ◉ |
| APSTAR-6C Apstar 6C | 43450 | 2018-041A | APT | May 3, 2018 | 1436 min, 0.1° | Active | ◉ |
| ALCOMSAT 1 Alcomsat 1 | 43039 | 2017-078A | ASAL | Dec 10, 2017 | 1436 min, 0.0° | Active | ◉ |
| ZHONGXING-9A Zhongxing 9A | 42763 | 2017-035A | CHISAE | Jun 18, 2017 | 1443 min, 5.1° | Inactive | ◉ |
| SHIJIAN-17 (SJ-17) Shi Jian 17 | 41838 | 2016-065A | CHISAE/CAST | Nov 3, 2016 | 1442 min, 5.8° | Active | ◉ |
| TIANTONG-1 1 Tiantong-1 01 xing | 41725 | 2016-048A | CAST | Aug 5, 2016 | 1436 min, 3.9° | Active | ◉ |
| BELINTERSAT-1 BelinterSat-1 | 41238 | 2016-001A | ZTZM | Jan 15, 2016 | 1436 min, 0.0° | Active | ◉ |
| GAOFEN-4 Gao Fen 4 | 41194 | 2015-083A | CNSAS | Dec 28, 2015 | 1436 min, 0.4° | Active | ◉ |
| ZHONGXING-1C Zhongxing 1C | 41103 | 2015-073A | ZZB | Dec 9, 2015 | 1452 min, 7.2° | Inactive | ◉ |
| ZHONGXING-2C Zhongxing 2C | 41021 | 2015-063A | ZZB | Nov 3, 2015 | 1436 min, 0.4° | Active | ◉ |
| APSTAR-9 Apstar 9 | 40982 | 2015-059A | APT | Oct 16, 2015 | 1436 min, 0.0° | Active | ◉ |
| TJS-1 Tongxin Jishu Shiyan 1 | 40892 | 2015-046A | CASC | Sep 12, 2015 | 1436 min, 0.4° | Active | ◉ |
| TKSAT-1 (TUPAC KATARI) Tupac Katari | 39481 | 2013-075A | ABE | Dec 20, 2013 | 1436 min, 0.0° | Active | ◉ |
| ZHONGXING-11 Zhongxing 11 | 39157 | 2013-020A | ZZB | May 1, 2013 | 1436 min, 0.0° | Active | ◉ |
| ZHONGXING-2A Zhongxing 2A | 38352 | 2012-028A | ZZB | May 26, 2012 | 1436 min, 1.5° | Active | ◉ |
| NIGCOMSAT 1R Nigcomsat 1R | 38014 | 2011-077A | NGCOM | Dec 19, 2011 | 1436 min, 0.0° | Active | ◉ |
| ZHONGXING-1A Zhongxing 1A | 37804 | 2011-047A | ZZB | Sep 17, 2011 | 1440 min, 3.8° | Inactive | ◉ |
| PAKSAT-1R Paksat 1R | 37779 | 2011-042A | SUPA | Aug 11, 2011 | 1436 min, 0.8° | Active | ◉ |
| ZHONGXING-10 Zhongxing 10 | 37677 | 2011-026A | CHISAE | Jun 20, 2011 | 1436 min, 1.1° | Active | ◉ |
| ZHONGXING-6A Zhongxing 6A | 37150 | 2010-042A | CHISAE | Sep 4, 2010 | 1444 min, 4.3° | Inactive | ◉ |
| VENESAT-1 Simon Bolivar | 33414 | 2008-055A | ABAE | Oct 29, 2008 | 1451 min, 5.8° | Inactive | ◉ |
| NIGCOMSAT 1 Nigcomsat 1 | 31395 | 2007-018A | NGCOM | May 13, 2007 | 1437 min, 11.9° | Inactive | ◉ |
| SINOSAT 2 (XINNUO 2) Xinnuo 2 | 29516 | 2006-048A | SINO | Oct 28, 2006 | 1550 min, 14.5° | Inactive | ◉ |
Frequently asked questions
How many DFH-4 satellites are there?
The catalog lists 50 objects built on the DFH-4 bus. 50 are in orbit and 0 have reentered.
How many DFH-4 satellites are in orbit?
50 DFH-4 objects are currently in orbit, of which 41 carry an active status.
Who builds the DFH-4 bus?
The DFH-4 bus is most commonly built by CAST.
When did the first DFH-4 satellite launch?
The first cataloged DFH-4 satellite launched in 2006, and the most recent in 2025.